CVE-2015-2922
low
CVSS v3
—
CVSS v2
3.3
VIR risk
3.3
Description
The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in the Linux kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-2922
Vendor advisory: cve@mitre.org — http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.6
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 3.16.7-ckt9-1 |
| debian | bullseye | fixed | 3.16.7-ckt9-1 |
| debian | forky | fixed | 3.16.7-ckt9-1 |
| debian | sid | fixed | 3.16.7-ckt9-1 |
| debian | trixie | fixed | 3.16.7-ckt9-1 |
| linux-kernel | affected | | |
| debian | 7.0 | affected | |
| debian | 8.0 | affected | |
| fedora | 20 | affected | |
| fedora | 21 | affected | |
| fedora | 22 | affected | |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6fd99094de2b83d1d4c8457f2c83483b2828e75a
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155804.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155854.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155908.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
- http://rhn.redhat.com/errata/RHSA-2015-1221.html
- http://rhn.redhat.com/errata/RHSA-2015-1534.html
- http://rhn.redhat.com/errata/RHSA-2015-1564.html
- http://www.debian.org/security/2015/dsa-3237
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.6
- http://www.openwall.com/lists/oss-security/2015/04/04/2
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securityfocus.com/bid/74315
- http://www.securitytracker.com/id/1032417
- https://bugzilla.redhat.com/show_bug.cgi?id=1203712
- https://github.com/torvalds/linux/commit/6fd99094de2b83d1d4c8457f2c83483b2828e75a
- https://security-tracker.debian.org/tracker/CVE-2015-2922
CWEs
CWE-17
Verify integrity in audit chain (admin only). AS-IS.